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Illinois

$594+ Cheap flights from Belfast to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — ORD
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Belfast to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Round-trip from

$594
(Mytrip)
From Belfast to Illinois
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Find flight deals from Belfast to Illinois

Cheapest flights from Belfast to Illinois
Explore the most affordable flight options available from Belfast to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This Mytrip deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/176:30 amBFS - ORD
2 stops16h 50mMultiple Airlines
Mon 3/247:30 pmORD - BFS
2 stops20h 35mMultiple Airlines
Deal found 1/30$594
This Voliamo deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Voliamo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/275:20 pmBHD - ORD
1 stop27h 10mKLM
Sun 3/95:25 pmORD - BHD
1 stop22h 35mKLM
Deal found 1/30$786
This Voliamo deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Voliamo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/277:10 amBHD - ORD
2 stops18h 05mAer Lingus
Sun 3/98:40 pmORD - BHD
2 stops16h 00mAer Lingus
Deal found 1/30$806
This Air France deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/276:30 amBHD - ORD
2 stops15h 43mMultiple Airlines
Sun 3/95:25 pmORD - BHD
1 stop18h 25mMultiple Airlines
Deal found 1/30$814
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/156:30 amBHD - ORD
2 stops20h 44mDelta
Wed 2/194:58 pmORD - BHD
2 stops22h 02mDelta
Deal found 1/30$826
This Finnair deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/156:30 amBHD - ORD
1 stop14h 15mFinnair
Wed 2/198:25 pmORD - BHD
1 stop14h 10mFinnair
Deal found 1/30$829

Find flights from Belfast to Illinois within your budget

Customize your flight search to find flights from Belfast to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 3/17

6:30 am-6:20 pm

2 stops16h 50m

Chicago O'Hare Intl

Mon 3/24

7:30 pm-9:05 pm

2 stops20h 35m

$594

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 2/27

5:20 pm-2:30 pm

1 stop27h 10m

Chicago O'Hare Intl

Sun 3/9

5:25 pm-9:00 pm

1 stop22h 35m

$786

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 2/27

7:10 am-7:15 pm

2 stops18h 05m

Chicago O'Hare Intl

Sun 3/9

8:40 pm-5:40 pm

2 stops16h 00m

$806

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 2/27

6:30 am-4:13 pm

2 stops15h 43m

Chicago O'Hare Intl

Sun 3/9

5:25 pm-4:50 pm

1 stop18h 25m

$814

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 2/15

6:30 am-9:58 pm

2 stops21h 28m

Chicago O'Hare Intl

Wed 2/19

4:25 pm-4:50 pm

1 stop18h 25m

$826

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 2/15

6:30 am-2:45 pm

1 stop14h 15m

Chicago O'Hare Intl

Wed 2/19

8:25 pm-4:35 pm

1 stop14h 10m

$829

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 5/16

10:20 am-7:00 pm

2 stops14h 40m

$854

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 5/16

6:35 am-6:15 pm

1 stop17h 40m

$1,674

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Best time to book a flight from Belfast to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Belfast with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Belfast to Illinois

Get recent, data-driven insights about flights from Belfast to Illinois including ideal travel times, pricing trends, and more.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated January 30, 2025.
Delta
8.0
Very good
8,454 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,454 reviews
Delta
8.0
Very good
8,454 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,335 reviews
Delta
8.0
Very good
8,454 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very good
8,454 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Aer Lingus
7.1
Good
1,077 reviews
Delta
8.0
Very good
8,454 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Belfast to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Belfast to Illinois that include hotel bookings?

    Yes. In addition to deals on Belfast to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Belfast to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to Illinois.

  • Can I find deals for business class flights from Belfast to Illinois?

    Yes. Cheapflights offers flight deals from Belfast to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Belfast to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Belfast to Illinois (average of $245). Flying from Belfast to Illinois in March is currently the most expensive (average of $325). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Belfast to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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